Strap for a child drinking cup



FIG. 1 is a perspective view of a strap for a child drinking cup according to my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a right side elevation view there.

The broken lines shown herein for illustrative purposes form no part of the claimed design. 

The ornamental design for a strap for a child drinking cup, as shown and described. 